Making a Racket

The Friday File: Old tennis rackets focused on power and a sweet spot. With new polyester blend strings, topspin is in. For every 100 rpm’s of topspin you reduce distance travelled by 6 to 12 inches. Spin is created three ways: the speed at which the racket is swung, the angle at which it hits the ball, and the snapping back into place of the strings after ball contact.

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